package cn.hl.hm.util;

import java.math.BigDecimal;

import org.apache.log4j.Logger;

public class BigNumberUtils {
	private static Logger logger = Logger.getLogger(BigNumberUtils.class);
	private static final String[] fraction = { "角", "分" };

	private static final String[] digit = { "零", "壹", "贰", "叁", "肆", "伍", "陆", "柒", "捌", "玖" };

	private static final String[][] unit = { { "元", "万", "亿" }, { "", "拾", "佰", "仟" } };

	/**
	 * 数字金额大写转换，思想先写个完整的然后将如零拾替换成零
	 * 
	 * 要用到正则表达式
	 */
	public static String toNumber(double n) {
		String head = n < 0 ? "负" : "";
		n = Math.abs(n);
		String s = "";
		for (int i = 0; i < fraction.length; i++) {
			s += (digit[(int) (Math.floor(n * 10 * Math.pow(10, i)) % 10)] + fraction[i]).replaceAll("(零.)+", "");
		}

		if (s.length() < 1) {
			s = "整";
		}

		int integerPart = (int) Math.floor(n);
		for (int i = 0; i < unit[0].length && integerPart > 0; i++) {
			String p = "";
			for (int j = 0; j < unit[1].length && n > 0; j++) {
				p = digit[integerPart % 10] + unit[1][j] + p;
				integerPart = integerPart / 10;
			}

			s = p.replaceAll("(零.)*零$", "").replaceAll("^$", "零") + unit[0][i] + s;
		}

		String tail = s.replaceAll("(零.)*零元", "元");
		tail = tail.replaceFirst("(零.)+", "");
		tail = tail.replaceFirst("(零.)+", "零");
		tail = tail.replaceFirst("^整$", "零元整");
		return head + tail;
	}

	public static void main(String agrs[]) {
		// 整数
		System.out.println(toNumber(0)); // 零元整
		System.out.println(toNumber(123)); // 壹佰贰拾叁元整
		System.out.println(toNumber(1000000)); // 壹佰万元整
		System.out.println(toNumber(100000001)); // 壹亿零壹元整
		System.out.println(toNumber(1000000000)); // 壹拾亿元整
		System.out.println(toNumber(1234567890)); // 壹拾贰亿叁仟肆佰伍拾陆万柒仟捌佰玖拾元整
		System.out.println(toNumber(1001100101)); // 壹拾亿零壹佰壹拾万零壹佰零壹元整
		System.out.println(toNumber(110101010)); // 壹亿壹仟零壹拾万壹仟零壹拾元整

		// 小数
		System.out.println(toNumber(0.12)); // 壹角贰分
		System.out.println(toNumber(123.34)); // 壹佰贰拾叁元叁角肆分
		System.out.println(toNumber(1000000.56)); // 壹佰万元伍角陆分
		System.out.println(toNumber(100000001.78)); // 壹亿零壹元柒角捌分
		System.out.println(toNumber(1000000000.90)); // 壹拾亿元玖角
		System.out.println(toNumber(1234567890.03)); // 壹拾贰亿叁仟肆佰伍拾陆万柒仟捌佰玖拾元叁分
		System.out.println(toNumber(1001100101.00)); // 壹拾亿零壹佰壹拾万零壹佰零壹元整
		System.out.println(toNumber(110101010.10)); // 壹亿壹仟零壹拾万壹仟零壹拾元壹角

		// 负数
		System.out.println(toNumber(-0.12)); // 负壹角贰分
		System.out.println(toNumber(-123.34)); // 负壹佰贰拾叁元叁角肆分
		System.out.println(toNumber(-1000000.56)); // 负壹佰万元伍角陆分
		System.out.println(toNumber(-100000001.78)); // 负壹亿零壹元柒角捌分
		System.out.println(toNumber(-1000000000.90)); // 负壹拾亿元玖角
		System.out.println(toNumber(-1234567890.03)); // 负壹拾贰亿叁仟肆佰伍拾陆万柒仟捌佰玖拾元叁分
		System.out.println(toNumber(-1001100101.00)); // 负壹拾亿零壹佰壹拾万零壹佰零壹元整
		System.out.println(toNumber(-110101010.10)); // 负壹亿壹仟零壹拾万壹仟零壹拾元壹角
	}
	//元转分
	public static BigDecimal yuanToFen(Double a){
		if(a == null){
			return new BigDecimal(0);
		}
		try{
			BigDecimal yuan = new BigDecimal(a);
	        BigDecimal fen = yuan.multiply(BigDecimal.valueOf(100));
	        return fen;
		}catch(Exception e){
			e.printStackTrace();
			logger.error("工具类BigNumberUtils异常"+e);
		}
		return new BigDecimal(0);
		 
	}
 	//分转元
 	public static BigDecimal fenToyuan(Double a){
 		if(a == null){
 			return new BigDecimal(0);
 		}
 		try{
 			 //double fen22=Double.parseDouble(fen.toString());
 			 BigDecimal yuan = BigDecimal.valueOf(a).divide(BigDecimal.valueOf(100));
 	        return yuan;
 		}catch(Exception e){
 			e.printStackTrace();
 			logger.error("工具类BigNumberUtils异常"+e);
 		}
 		return new BigDecimal(0);
 		 
 	}

}